La Crosse Technology s wireless temperature station features indoor/outdoor temperature readings indoor humidity Hi/Lo recorded values and trend indicators all on an easy-to-read display. Long distance wireless transmission ranges over 330 ft and reads outside temperatures down to -40 F. Time display can be adjustable to view in either 12-hour standard or 24-hour time format and station is versatile to change temperature readings to show in either Fahrenheit or Celsius. Net contents include 1 each featuring battery indicator when power is low and should be replaced and shows your transmitting sensor strength level. Battery operated station with included temperature sensor requires 2 AAA and 2 AA batteries (not included) giving you your weather at a glance!